sure enough, it was the heating connection that was dropping voltage into the O2, I unpluged it until I have a chance to fix it up and the car runs great.
At first I completely unpluged the O2 and man did it burn a lot of gas like that.... WHEW!!!
70km on a 1/4 of a tank, but when I stepped on it, it flew!
for all you dragsters out there he he he
also if the car hesitates, you can unplug the O2 and so long to hesitation Hello to crappy gas mileage, just from my experiments